/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
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** This file is part of the QtWebEngine module of the Qt Toolkit.
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** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
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****************************************************************************/

#include "browser_context_qt.h"

#include "browser_context_adapter.h"
#include "download_manager_delegate_qt.h"
#include "permission_manager_qt.h"
#include "qtwebenginecoreglobal_p.h"
#include "resource_context_qt.h"
#include "ssl_host_state_delegate_qt.h"
#include "type_conversion.h"
#include "url_request_context_getter_qt.h"
#include "web_engine_library_info.h"

#include "base/time/time.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/storage_partition.h"
#include "net/proxy/proxy_config_service.h"

#if defined(ENABLE_SPELLCHECK)
#include "base/base_paths.h"
#include "base/prefs/pref_member.h"
#include "base/prefs/pref_service.h"
#include "base/prefs/testing_pref_store.h"
#include "base/prefs/pref_service.h"
#include "base/prefs/pref_service_factory.h"
#include "base/prefs/pref_registry_simple.h"
#include "components/user_prefs/user_prefs.h"
#include "chrome/common/pref_names.h"
#include "chrome/browser/spellchecker/spellcheck_service.h"
#endif

namespace QtWebEngineCore {

#if defined(ENABLE_SPELLCHECK)
BrowserContextQt::BrowserContextQt(BrowserContextAdapter *adapter)
    : m_adapter(adapter),
      m_prefStore(new TestingPrefStore())
{
    m_prefStore->SetInitializationCompleted();
    base::PrefServiceFactory factory;
    factory.set_user_prefs(m_prefStore);
    scoped_refptr<PrefRegistrySimple> registry(new PrefRegistrySimple());

    // Initial spellcheck settings
    registry->RegisterListPref(prefs::kSpellCheckDictionaries, new base::ListValue());
    registry->RegisterStringPref(prefs::kAcceptLanguages, std::string());
    registry->RegisterStringPref(prefs::kSpellCheckDictionary, std::string());
    registry->RegisterBooleanPref(prefs::kSpellCheckUseSpellingService, false);
    registry->RegisterBooleanPref(prefs::kEnableContinuousSpellcheck, false);
    registry->RegisterBooleanPref(prefs::kEnableAutoSpellCorrect, false);
    m_prefService = factory.Create(std::move(registry.get()));
    user_prefs::UserPrefs::Set(this, m_prefService.get());
}
#else
BrowserContextQt::BrowserContextQt(BrowserContextAdapter *adapter)
    : m_adapter(adapter)
{
}
#endif //ENABLE_SPELLCHECK

BrowserContextQt::~BrowserContextQt()
{
    if (resourceContext)
        content::BrowserThread::DeleteSoon(content::BrowserThread::IO, FROM_HERE, resourceContext.release());
}

base::FilePath BrowserContextQt::GetPath() const
{
    return toFilePath(m_adapter->dataPath());
}

base::FilePath BrowserContextQt::GetCachePath() const
{
    return toFilePath(m_adapter->cachePath());
}

bool BrowserContextQt::IsOffTheRecord() const
{
    return m_adapter->isOffTheRecord();
}

net::URLRequestContextGetter *BrowserContextQt::GetRequestContext()
{
    return url_request_getter_.get();
}

net::URLRequestContextGetter *BrowserContextQt::GetRequestContextForRenderProcess(int)
{
    return GetRequestContext();
}

net::URLRequestContextGetter *BrowserContextQt::GetMediaRequestContext()
{
    return GetRequestContext();
}

net::URLRequestContextGetter *BrowserContextQt::GetMediaRequestContextForRenderProcess(int)
{
    return GetRequestContext();
}

net::URLRequestContextGetter *BrowserContextQt::GetMediaRequestContextForStoragePartition(const base::FilePath&, bool)
{
    return GetRequestContext();
}

content::ResourceContext *BrowserContextQt::GetResourceContext()
{
    if (!resourceContext)
        resourceContext.reset(new ResourceContextQt(this));
    return resourceContext.get();
}

content::DownloadManagerDelegate *BrowserContextQt::GetDownloadManagerDelegate()
{
    return m_adapter->downloadManagerDelegate();
}

content::BrowserPluginGuestManager *BrowserContextQt::GetGuestManager()
{
    return 0;
}

storage::SpecialStoragePolicy *BrowserContextQt::GetSpecialStoragePolicy()
{
    QT_NOT_YET_IMPLEMENTED
    return 0;
}

content::PushMessagingService *BrowserContextQt::GetPushMessagingService()
{
    return 0;
}

content::SSLHostStateDelegate* BrowserContextQt::GetSSLHostStateDelegate()
{
    if (!sslHostStateDelegate)
        sslHostStateDelegate.reset(new SSLHostStateDelegateQt());
    return sslHostStateDelegate.get();
}

scoped_ptr<content::ZoomLevelDelegate> BrowserContextQt::CreateZoomLevelDelegate(const base::FilePath&)
{
    return nullptr;
}

content::BackgroundSyncController* BrowserContextQt::GetBackgroundSyncController()
{
    return nullptr;
}

content::PermissionManager *BrowserContextQt::GetPermissionManager()
{
    if (!permissionManager)
        permissionManager.reset(new PermissionManagerQt());
    return permissionManager.get();
}

net::URLRequestContextGetter *BrowserContextQt::CreateRequestContext(content::ProtocolHandlerMap *protocol_handlers, content::URLRequestInterceptorScopedVector request_interceptors)
{
    url_request_getter_ = new URLRequestContextGetterQt(m_adapter->sharedFromThis(), protocol_handlers, std::move(request_interceptors));
    return url_request_getter_.get();
}

#if defined(ENABLE_SPELLCHECK)
void BrowserContextQt::failedToLoadDictionary(const std::string &language)
{
    Q_ASSERT(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
    qWarning() << "Could not load dictionary for:" << toQt(language) << endl
               << "Make sure that correct bdic file is in:" << toQt(WebEngineLibraryInfo::getPath(base::DIR_APP_DICTIONARIES).value());
}

void BrowserContextQt::setSpellCheckLanguage(const QString &language)
{
    base::ListValue dictionaries;
    dictionaries.AppendString(language.toStdString());
    m_prefService->Set(prefs::kSpellCheckDictionaries, dictionaries);
}

QString BrowserContextQt::spellCheckLanguage() const
{
    std::string dictionary;
    m_prefService->GetList(prefs::kSpellCheckDictionaries)->GetString(0, &dictionary);
    return QString::fromStdString(dictionary);
}

void BrowserContextQt::setSpellCheckEnabled(bool enabled)
{
    m_prefService->SetBoolean(prefs::kEnableContinuousSpellcheck, enabled);
}

bool BrowserContextQt::isSpellCheckEnabled() const
{
    return m_prefService->GetBoolean(prefs::kEnableContinuousSpellcheck);
}
#endif //ENABLE_SPELLCHECK
} // namespace QtWebEngineCore